13214436320521 has 8 divisors (see below), whose sum is σ = 13672436713920. Its totient is φ = 12756591272208.

The previous prime is 13214436320509. The next prime is 13214436320539. The reversal of 13214436320521 is 12502363441231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13214436320521 - 2⁹ = 13214436320009 is a prime.

It is a super-2 number, since 2×13214436320521² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13214436320221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38663181 + ... + 39003466.

It is an arithmetic number, because the mean of its divisors is an integer number (1709054589240).

Almost surely, 2^{13214436320521} is an apocalyptic number.

It is an amenable number.

13214436320521 is a deficient number, since it is larger than the sum of its proper divisors (458000393399).

13214436320521 is an equidigital number, since it uses as much as digits as its factorization.

13214436320521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77672543.

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 13214436320521 its reverse (12502363441231), we get a palindrome (25716799761752).

The spelling of 13214436320521 in words is "thirteen trillion, two hundred fourteen billion, four hundred thirty-six million, three hundred twenty thousand, five hundred twenty-one".